The variance of a distribution of means is smaller than the original population variance because:.

Answers

Answer 1

The variance (σ2), is defined as the sum of the squared distances of each term in the distribution from the mean (μ), divided by the number of terms in the distribution (N).

Given a sample from a normal (or asymptotic normal) distribution, the sample variance is more often less than the population variance due to the skewed nature of the distribution of the unbiased sample estimate.


Related Questions

What kind of landform is a depression?
A.
a landform that is naturally lower than its surroundings
B.
an area of land that is broad, flat, and open
C.
a body of water that is formed at the mouth of a river
D.
a landform that rises well above its surroundings

Answers

Answer:

A. a landform that is naturally lower than it's surroundings

Explanation:

A way to think of it is de-pressed so the landform is pressed down compared to it's surroundings.

Answer: the answer is A. a landform that is naturally lower than its surroundings

Explanation: I got it right on the test

One of the ways to avoid experiencing frazzle is to accept your thoughts and feelings. What does this mean

Answers

Answer:

we everone should feeling anything and anywhere

If age and gender together help to explain attitudes regarding welfare policy, it indicates that a(n) ______ is present.

Answers

Answer:

female is present and special

If 20 of 40 in the upper group and 20 of 40 in the lower group choose the correct answer to a multiple-choice question with five possible responses, what would the index of discrimination be for the item

Answers

When 20 of 40 in the upper group and 20 of 40 in the lower group choose the correct answer the index of discrimination will be 0.

How would you know the discrimination level of a test item?

The Discrimination Index (D) is can be found or gotten from the aspect of the equal-sized high and low scores of a given group that are found on the test.

Conclusively one can be able to do this by Subtracting the number of successes of the the small group on the item from that of the  number of successes by the biggest group, and later on one has to divide this difference by the known or given size of the group. Since the two groups are 20 of 40, then the index will be 0.

See options below

a. .50

b. .20

c. .0

d. -.20

Learn more about discrimination from

https://brainly.com/question/1084594

#SPJ1

Some research supports the claim that individuals with antisocial personality disorder may not exhibit the same increase in stress hormone levels when under stress as those without the disorder. please select the best answer from the choices provided t f

Answers

Focused attention is a sort of attention that allows you to recognize relevant inputs fast, is true.

What is an antisocial personality disorder?

It is a disorder that affects the thinking ability, perceived ability, etc. of a person.

The common symptoms of this disorder are irritation, aggression agitation, etc.

These people lack empathy for others and often harm others.

They have poor and abusive relations.

Thus, the given statement is true.

Learn more about antisocial personality disorder

https://brainly.com/question/4031840

Which group's beliefs influenced some traditional west african religions?
agnostics
atheists
anabaptists
animists

Answers

The group which can trace some of its influences to traditional west African religions are the Animists.

Who are the Animists?

Animists are those who believe that natural things can influence their lives. They therefore pay reverence to things such as plants and animals.

This is related to traditional west African religions which placed great emphasis on the influence that nature had with their deities having mastery over things in nature.

Find out more on Animists at https://brainly.com/question/4247556.

how important was the road system to life in the incan empire

Answers

Answer:

It was essential

Explanation:

The Incan empire was built upon their road system. Their strength came from their ability to form bonds with others in surrounding areas (accessed through roads) and from their access to a variety of materials. Their roads acted as trade routes that gave them access to resources all throughout their region in South America, all the way through the Andes.

The more angry dating subjects with mind-reading expectations become, the more likely they are to use ____________ to punish their partners.

Answers

The use of a silent treatment become prominent if the angry dating subjects became more use to mind-reading expectations,

What is a silent treatment?

In a relationship, its involves the refusal of a party to communicate verbally with another person.

Sometimes, these parties use this treatment to refrain from acknowledging the presence of the other person.

In conclusion, the use of silent treatment is the answer.

Read more about silent treatment

brainly.com/question/14009213

The ___ were building a kingdom, exceptional.
at its height in the 12th century,
it stretched from ecuador to chile.
essentially based at peru, in the city of cuzco

Answers

Jewish people is the answer

The Inca empire was building a kingdom in the 12th century which was based in Peru, especially in the city of Cuzco, and was spread from Ecuador to Chile.

What is civilization?

Civilization refers to the age where the development of human beings emerged in terms of social and cultural beliefs.

The Inca civilization began in the 12 century A.D. in the southern state called Peru and within the city of Cuzco.It was the major civilization that emerged in pre-Columbian America from the year 1438 till the year 1533. The empire of Incas was spread across Ecuador towards Chile. They were popular for their artworks, agricultural methods, record keeping, etc.

Therefore, the kingdom established in the 12th Century in Peru was called the Inca empire.

Learn more about the Inca civilization in the related link:

https://brainly.com/question/12430680

#SPJ2

Which of the following statements about human populations in industrialized countries is correct? (A) Birth rates and death rates are high. (B) Average family size is relatively large. (C) The population has undergone the demographic transition. (D) The survivorship curve is Type II

Answers

In most industrialized countries, it is true the popultation has undergone the demographic transition.

What are industrialized countries?

This concept refers to developed countries or countries where there is an advanced technology, the economy is sophisticated and there is high life quality.

What are the characteristics of these countries?

In this contries:

Education levels are high.Death rates are low.Most people live in cities or urban zones.Economy tends to grow.

Some of these changes are the result of demographic transition that implies a country with no technology, high birth and death rates, low education levels, etc. slowly transitions over time to be an industrialized nation.

Learn more about industrialization in: https://brainly.com/question/7721379

Scott and his team have been considered too reactive and non responsive by other departments. How can this perception affect the effectiveness of the HR department and the hospital

Answers

This can affect the effectiveness of other department in the sense that there will be a communication gap between scotts team and other department.

Effective Communication

Without effective and efficient communication, most organisation are bound not to work, due to the nature of scotts team, other team may avoid them due to their reactive nature, this in turn can lead to communication lapses and ultimately effect the productivity of other department.

Learn more about effective communication here:

https://brainly.com/question/26152499

What is federalism?
The federal
Principle of
sername

Answers

federalism, mode of political organization that unites separate states or other polities within an overarching political system in a way that allows each to maintain its own integrity.

objectives of comparing the effectiveness of classroom and online learning research? ​

Answers

Answer:

Learning online is most effective option that student can choose to gain knowledge through. It is the best environment to study in since learner will choose the place suitable for him or her. Studying online is even better than learning inside a classroom, (Smith, 2016). From research it has been seen that students who study online have better performance as compared to those who receive instructions face-to-face.in online studying, students experience elements combination where they do it at their own pace without pressure exerted on them.

Step-by-step explanation

Learning online is most effective option that student can choose to gain knowledge through. It is the best environment to study in since learner will choose the place suitable for him or her. Studying online is even better than learning inside a classroom, (Smith, 2016). From research it has been seen that students who study online have better performance as compared to those who receive instructions face-to-face.in online studying, students experience elements combination where they do it at their own pace without pressure exerted on them. They do study at their own time and are free to think critically and deeply about the subject they are doing. During online studies, students are able to interact with other students, contend and their teachers from different geographical location.

As it has been noted in the above information online learning has a positive impact on students and people who do it. Students doing face-to-face courses perform poorly that students doing it in E-learning, (Smith, 2016). Online studying improved learning process and performance in academic significantly. Online studying prepares students to be working on digital age. E-learning which is flexible results to advancement in career and chances of students who study online to get jobs.

References

Yeboah, A. K., & Smith, P. (2016). Relationships between Minority Students Online Learning Experiences and Academic Performance. Online Learning, 20(4), n4.

Yeboah, A. K., & Smith, P. (2016). Relationships between Minority Students Online Learning Experiences and Academic Performance. Online Learning, 20(4), n4.

Explanation:

What evidence supports the claim that Earth is older than the oldest rocks?

Answers

Answer: There are several reasons as to why the scientists believe that the Earth is older than the age of the oldest rocks. One of those clues is that the oldest rocks do not correspond with the estimated age of the formation of the planets in the Solar System, thus the Earth as well. Another one is that the Earth was initially hot, gassy and liquid, and it took millions of years for it to cool off, so only after its surface cooled off enough, the Earth got its first rocks. The rocks are also not staying static, but instead they move because of the tectonic movements, so over the course of millions of years, they weather, erode, sink, subduct, all of which can wipe them off the face of the Earth, so the younger ones remain.

Explanation:

Acceptable websites to use include those that

a. are personal web pages.
b. contain a % sign in the domain name.
c. give a lot of opinions, but not many facts.
d. stay with the facts and strong .

Answers

Answer:

D. Stay with the facts and strong

Answer:

D. Stay with the facts and strong

Explanation:

Websites should be factual since people are trying to learn from them, unless they are blog posts.


I hope it helps! Have a great day!

bren~

Answer the following questions.
1. Why was UNFPA established?​
2."Nepal is a country of religious tolerance." State one example to prove this statement

Answers

Answer:

to create the understanding and the capacity to reply to necessities in population and family plans.

Explanation:

Nepal has maintained a religious tolerance

Identify the reasons why most americans are more affluent than anyone in the past has ever been.
a. increasing socioeconomic equality.
b. a steadily strengthening social safety net.
c. the globalization of the labor force.
d. to open technological advances.

Answers

The reason why a lot of American  are more affluent are due to:

open technological advances.globalization of the labor force.

How technology and Globalization has benefitted Americans?

The reason why the Americans have become more affluent is due to the fact that they now have more opportunities based on available technology unlike the past.

Work is now done faster and more efficiently. Also they are able to expand to various other countries in the world and establish there.

Read more on technological advances here: https://brainly.com/question/2166344

For historical and religious reasons, jewish women in israel feel great pressure to reproduce the family and the nation. How is this ideal encouraged in israeli policy?.

Answers

Answer:

"For historical and religious reasons, Jewish women in Israel feel great pressure to reproduce the family and the nation." How is this ideal encouraged in Israeli policy? Israel has more fertility clinics per person than any other nation.

Explanation:

Which president was the grandson of another president?.

Answers

Answer:Benjamin Harrison

Explanation:

He was a grandson of the ninth president, William Henry Harrison, and a great-grandson of Benjamin Harrison V, a founding father who signed the United States Declaration of Independence.

Answer:

Benjamin Harrison

Explanation:

Have a nice day

Describe the function of a muscle

Answers

Answer:

The muscular system is composed of special cells called muscle fibers. Their predominant function is contractibility. Muscles, attached to bones or internal organs and blood vessels, are responsible for movement.

Explanation:

Nearly all movement in the body is the result of muscle contraction.

write any five importance of federalism?​

Answers

Answer:

Different levels of government, jurisdiction, constitutional guarantee, changing the provisions, power of court in disputes are the five features of federalism.

Explanation:

what is the impact of nutritious food on quality of life​

Answers

Answer:

The use of nutritious foods has a significant impact on quality of life. Example,a diet rich in fruit and vegetables can help reduce the risk of chronic disease such a cancer and heart disease.

Activity 6: Concept Map.
Directions: Complete the concept map by supplying the information you learn from the
paragraph below.
What happens during El Nino? During El Niño, air pressure rises in the western Pacific
and falls in the central and eastern Pacific. Without the strong pressure gradient, the
trade winds weaken. Without the trade winds, there is less upwelling near the coast of
South America and the warm and nutrient-poor water of the western Pacific spreads
east, piling up water in the eastern tropical Pacific. Not as much marine life can survive
in the warm water as can in the cool nutrient-rich waters. The warm water in the Pacific
evaporates faster than cool water, leading to more water vapor in the air which can
cause high humidity.
Concept map focusing on how El Nino events impact (1) weather (2) wind (3)
evaporation (4) Ocean temperature. (5) upwelling and (6) air pressure.
- it rises in the Westem Pacific
and drops in the eastern pacific
The
winds weaken
There is less upwelling near
South America
spreads east
Ocean temperature
across the pacific
There is more evaporation
- some places get cold and dry,
other places get warm and wet.

Answers

El Nino causes significant weather changes in the Pacific as well produces significant changes in marine life.

What is El Nino?

El Nino is an abnormal weather pattern which occurs as a result of the warming of the Pacific Ocean near the equator, off the coast of South America.

During El Nino, air pressure rises in the western Pacific and falls in the central and eastern Pacific, thus weakening normal trade winds.

Less upwelling occurs near the coast of South America and the warm and nutrient-poor water of the western Pacific spreads east, piling up water in the eastern tropical Pacific.

Faster evaporation of warm water in the Pacifc leads to high humidity.

Certain areas in the northern U.S. and Canada are dryer and warmer than usual whereas areas in the U.S. Gulf Coast and Southeast are wetter than usual and have increased flooding.

Also, less upwelling results in fewer phytoplankton off the coast which lowers fish population which in turn, affects everything that eats fish.

Therefore, El Nino causes significant weather changes in the Pacific.

Learn more about El Nino at: https://brainly.com/question/186190

!!!Someone please help me with this. It’s my last question and I don’t want to get it wrong please help!!!

What is the importance of preparing for a lecture?

A)It helps you determine the value of the lecture as it relates to your learning.

B)It helps you to listen for errors in the speaker's facts or supporting ideas.

C)It helps you focus and find meaning in what you hear.

D)It helps you to stay alert during a lecture

Answers

Answer:

I think the answer is A :)

Hope this helps!!

Please rate and mark brainliest!!

Which measure of validity is based on showing a substantial correlation between test scores and job performance scores

Answers

Criterion validity measure of validity is based on showing a substantial correlation between test scores and job performance scores.

What is Criterion validity?

Criterion validity is used to evaluates or measure if a test is able to predict a valid or good outcome.

This outcome or result can measure to know if the results are valid proofs.

Therefore, Criterion validity measure of validity is based on showing a substantial correlation between test scores and job performance scores.

Learn more on validity here

https://brainly.com/question/4945829

For economics!!!!

What type of spending funds the Federal Bureau of Investigations and defense programs?
O interest on the national debt
O discretionary spending
O mandatory spending
O required spending

Answers

Answer:

a; discretionary spending

b; Local governments spend a higher percentage of their budgets on elementary and secondary education than state governments but state governments spend a higher percentage on higher education than local governments.

b; Mandatory spending is required by law to be paid while discretionary spending is based on annual appropriations, set by the House and Senate Appropriations Committees.

b; Entitlement programs

a; discretionary spending

Explanation:

5 answers(all) for "spending of taxes quick check" in economics !!

"Mandatory spending" refers to spending on necessities such as food, FDI, and defense programs is Discretionary spending.

What are discretionary spending and mandatory spending?

The term "mandatory spending" refers to spending on necessities such as food. Discretionary spending refers to money spent on recreation and entertainment after people have met their basic needs.

The spending for FDI and defense programs is Discretionary spending or expenditure.

Therefore option 2 aptly describes the type of spending.

Learn more about discretionary spending and mandatory spending here:

https://brainly.com/question/13808769

Totaram believes that the government can read his thoughts and is spying on him. He hears voices telling him that the government is plotting to take his house and imprison him because he is a superhero. Totaram is most clearly suffering from

Answers

The fact that Totaram believes that the government can read his thoughts and is spying on him means he's suffering from schizophrenia.

What is schizophrenia?

It should be noted that schizophrenia simply means a mental disorder where people interpret things abnormally.

In this case, the fact that Totaram believes that the government can read his thoughts and is spying on him means he's suffering from schizophrenia.

Learn more about schizophrenia on:

https://brainly.com/question/7201954

in which countries does the Amazonian rain forest and Amazonian river flows? Mark me the brainiest please

Answers

Answer:

The river system originates in the Andes of Peru and flows through Ecuador, Colombia, Venezuela, Bolivia, and Brazil, then empties into the Atlantic. Amazon's mainstream is dominated by Brazil to a large extent.

Explanation:

The river system originates in the Andes Mountains of Peru and travels through Ecuador, Colombia, Venezuela, Bolivia, and Brazil before emptying into the Atlantic Ocean. Roughly two-thirds of the Amazon's main stream is within Brazil

A woman who jumps from one man to another is called:.

Answers

Answer:

a serial monogamist

Explanation:

The constitution establishes the supreme court. Which entity is empowered by the constitution to establish the lower federal courts?.

Answers

The Congress of the United States is the  entity is empowered by the constitution to establish the lower federal courts.

What is the Unbited States Congress?

This is the legislative arm of the United States of America. The members of the congress are those that are made to make the laws in the country.

The congress is made up of senators and they have the power to establish the lower courts that are in the country.

Read more on the congress here: https://brainly.com/question/1578160

Other Questions
Write a 200 letter story about a poor man that becomes a rich artist Hysterectomy Is a surgical removal ofthe Uterus.It may or may not be accompanied by Salpingo-oophorectomy, removal of the uterine tubes and ovaries. Why would it be an advantage to leave the ovaries intact how are the four chambers in the heart connected by it It is ____________ to miss a job opportunity because you are a minority worker. Which is an equation of the line that passes through the points (5, 2) and (10, -3)? HELP please help me with this question A company makes wax candles in the shape of a cylinder. Each candle has a diameter of 6 inches and a height of 4 inches. How much wax will the company need to make 140 candles?Use 3.14 for [tex]\pi[/tex] , and do not round your answer. The Great War - Europe plunges into waraustria-hungary declared war on russia. as a result russia began moving its army towards 2 countries. identify those countries and explain why they were mobilizing their army towards those countries. Larinda cooked a 4-kilogram the roast leftover after the meat weighed 3 kilograms how many grams of roast were eaten during that meal What's the relation between anxiety/ stress and music? help! p(x) = 4x^4 - 10x^3 + 8x - 1x = 8 list three things that spectra can tell us about objects in space 4. To break apart a polymer into individual monomers, what process would you use? What is the decimal for 4/100?What is the Answer I need help its calculating ph What country was created after WWII? What country was not? Is stress ing too much to the point where your chest be hurting at a young age bad? What is the phase label on H3O+? Type The Correct Answer, THIS IS NOT WHO WE ARE Which of our course countries allow for private ownership of businesses in their countries?